A recent project encountered many websites use the cdn, leading to sweep the directory and other operations difficult.
So I learn a bit about the ways to bypass cdn, and record it.
Several methods are roughly classified into the following:
1. Find a subdomain
2. Find the domain name resolution records history
3.SSL certificate probe
4. Mail Server
5. Multi-area, ping remote areas
6. sweep the whole network match violence
7. Other methods